An equal argument could be made for why not go. Since you've had success in the past with continuing to go when you didn't want to and since your T, whose judgment you seem to respect seems to think it would be a good idea and, since we can't tell the future, I'd keep going for X period (give it 3 or 6 months or some such period you and your T agree to to "change" -- either your feelings or situation or how "helpful" therapy is).